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#include "LegacyAACuboidVolume.h"
#include "math/vecmat.h"
namespace particle {
LegacyAACuboidVolume::LegacyAACuboidVolume(float normalVariance, float size, bool normalize) : m_normalVariance(normalVariance), m_size(size), m_normalize(normalize), m_modular_curve_instance(m_modular_curves.create_instance()) { }
vec3d LegacyAACuboidVolume::sampleRandomPoint(const matrix &orientation, decltype(ParticleEffect::modular_curves_definition)::input_type_t source, float particlesFraction) {
auto curveSource = std::tuple_cat(source, std::make_tuple(particlesFraction));
float variance = m_normalVariance * m_modular_curves.get_output(VolumeModularCurveOutput::VARIANCE, curveSource, &m_modular_curve_instance);
vec3d normal;
normal.xyz.x = orientation.vec.fvec.xyz.x + (frand() * 2.0f - 1.0f) * variance;
normal.xyz.y = orientation.vec.fvec.xyz.y + (frand() * 2.0f - 1.0f) * variance;
normal.xyz.z = orientation.vec.fvec.xyz.z + (frand() * 2.0f - 1.0f) * variance;
if (m_normalize)
vm_vec_normalize_safe(&normal);
return normal * m_size;
}
}
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